CVE-2020-23083 : Security Advisory and Response

Unrestricted File Upload vulnerability in JEECG v4.0 and earlier allows remote attackers to execute arbitrary code or gain privileges by uploading a crafted file to the component "jeecgFormDemoController.do?commonUpload".

Understanding CVE-2020-23083

This CVE involves a critical Unrestricted File Upload vulnerability in JEECG v4.0 and earlier versions.

What is CVE-2020-23083?

The CVE-2020-23083 vulnerability in JEECG v4.0 and earlier versions enables remote attackers to execute arbitrary code or elevate privileges by uploading a malicious file to the "jeecgFormDemoController.do?commonUpload" component.

The Impact of CVE-2020-23083

This vulnerability can lead to severe consequences, including unauthorized code execution and privilege escalation, posing a significant security risk to affected systems.

Technical Details of CVE-2020-23083

This section provides detailed technical information about the CVE-2020-23083 vulnerability.

Vulnerability Description

The vulnerability allows attackers to upload malicious files to the specified component, leading to arbitrary code execution or privilege escalation.

Affected Systems and Versions

JEECG v4.0 and earlier versions are affected by this vulnerability.

Exploitation Mechanism

Attackers exploit this vulnerability by uploading a specifically crafted file to the vulnerable component, enabling them to execute malicious code or gain unauthorized privileges.

Mitigation and Prevention

Protecting systems from CVE-2020-23083 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable the vulnerable component or restrict file upload capabilities to trusted sources.
Implement strict input validation to prevent malicious file uploads.

Long-Term Security Practices

Regularly update and patch the JEECG software to eliminate known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential weaknesses.
Educate users and administrators about secure file upload practices to prevent exploitation.

Patching and Updates

Apply patches and updates provided by the JEECG vendor to address the CVE-2020-23083 vulnerability.